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CrossBlock II Flea Control for Dogs & Puppies 11-20 lbs 3 Pack


SKU: 620109 Manufacturer: Ceva Animal Health

CrossBlock II is a topical medication that treats and prevents flea infestations on dogs and puppies 7 weeks of age and older and on cats and kittens 8 weeks of age and older. Kills adult fleas as well as their eggs and larvae. Starts killing fleas within 2 hours and continues to work for one full month of protection. CrossBlock II also prevents re-infestation of fleas by breaking the life cycle and preventing fleas from reproducing. Waterproof formula with easy open, individual dose applicators. Apply to the back of the neck area.

Kills adult fleas and prevents further re-infestation on dogs
Kills re-infestation fleas within 2 hours
Breaks the flea life cycle and prevents flea eggs and larvae from developing into adult fleas
Waterproof after application
Effective for one month

3 Month Supply for dogs and puppies 11 – 20 lbs (7 weeks or older)

Generic equivalent for Advantage II®. (Advantage II® is a registered trademark of Bayer)

Frequently Bought Together

  • crossblock-11-20
  • adams-flea-tick-shampoo-12
  • naturals-flea-collar
  • resco-pro-flea-comb
Total Price: $63.80


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Ingredients / Material How to Use
    • Imidacloprid ………………….. 9.10%
    • Pyriproxyfen ………………….. 0.46%
    • Other Ingredients …………… 90.44%

    EPA Est. No 74720-DEU-01

How to Apply

1. The dog should be standing or in a comfortable position for easy application. Apply the entire contents of the applicator evenly to three spots along the dog’s back, from the shoulder to the base of the tail.

2. At each spot, part the hair down to the level of the skin and gently squeeze the applicator to apply the product. Avoid superficial application to the dog’s hair.

3. Do not apply an excessive amount of solution to any one spot. This could cause the product to run off the dog. Do not get the product in the dog’s eyes or mouth or allow your dog to ingest the product. Do not use more than one tube on dogs greater than 55 lbs.

4. Discard the empty applicator as outlined in the Storage and Disposal section.

5. Repeat every month, or as recommended by your veterinarian.


Treatment of CrossBlock II™ For Dogs & Puppies will kill fleas on dogs and puppies within 12 hours and re-infesting fleas within 2 hours. It is possible pre-existing pupae in the environment may continue to emerge for 6 weeks or longer depending on climatic conditions. Use CrossBlock II™ For Dogs & Puppies monthly for the control and prevention of flea re-infestations.

Storage and Disposal

Do not contaminate water, food or feed by storage or disposal.

PESTICIDE STORAGE: Store in a cool, dry place. Keep out of reach of children.

PESTICIDE DISPOSAL AND CONTAINER HANDLING: Non-refillable container. Do not reuse or refill this container. If empty: Place in trash or offer for recycling, if available. If partly filled: Call your local solid waste agency for disposal instructions. Never place unused product down any indoor or outdoor drain.

Side Effects

Monitor your dog after application. Side effects, although rare, may include signs of skin irritation such as redness, scratching, or other signs of discomfort. Gastrointestinal signs such as vomiting or diarrhea have also been reported. If these or other side effects occur, consult your veterinarian or call 1-800-999-0297. Have the product container or label with you when calling your veterinarian for advice.

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